89 non SE chip?
Discussion
Hey there. I just bought a BEAUTIFUL 89 esprit with full service history. the car drives fantactic. Was looking at S4's and V8's but this one drove so good. I bought it and was going to just drive it. However... as I am a long time mod nut (audi , porsche 911,951) I can't resist. the car pulls so strong and only has 34k serviced miles. I plan on doing an exhaust, oil cooler etc. I can't seem to get a straight yes or no from anyone on the chip deal. SO can I chip it? should i mod it ? what do you think? always appreciate what I read here. thanks
Tim
Tim
Problem is that unless John (Squelch) wants to make a chip for us, the only chip available is #15 on
http://freudhoefer.de/lotus/esprit/products/chips/4cyl.htm
at 4 bills euro plus shipping. Our ECM's are very slightly different than the SE cars. Different enough that the chips won't plug-n-play.
Dr.Hess
http://freudhoefer.de/lotus/esprit/products/chips/4cyl.htm
at 4 bills euro plus shipping. Our ECM's are very slightly different than the SE cars. Different enough that the chips won't plug-n-play.
Dr.Hess
Dr. Hess,
thanks so much for your reply. I love the car, and the more I think about it , the more I think it may be redundant. The Car basically has the performance of a 2.0L GT3 and is not slow by any means. Would you, or have you chipped a non SE car. I respect your opinion and from what I have read on the forum if you say not to do it... I wouldn't. $400 dollars or euros is a bunch of money for some computer code that may or may not help my car perform better in the real world where heat and humidity and everything else play a role in hp.
thanks again
Tim
thanks so much for your reply. I love the car, and the more I think about it , the more I think it may be redundant. The Car basically has the performance of a 2.0L GT3 and is not slow by any means. Would you, or have you chipped a non SE car. I respect your opinion and from what I have read on the forum if you say not to do it... I wouldn't. $400 dollars or euros is a bunch of money for some computer code that may or may not help my car perform better in the real world where heat and humidity and everything else play a role in hp.
thanks again
Tim
Hey Tim,
I have the original code in mine. Four euro bills does seem a bit high to me as well, but there is a lot of reverse and foreward engineering to do to get the maps for our ECM. You know how turbo motors are: You can keep cranking the boost until it goes boom, then back it off one notch (on the new motor). I really don't want to do that. Like I said, if Squelch were to develop one for the non-SE I would consider it, as I respect his technical expertise and trust him to come up with maps that won't blow a motor on a non-chargecooled car. Actually, John said that the best thing to do is to buy a new SE type ECM (about a hundred real dollars at O'Reilley's) and re-wire the plugs, then you can run the SE code. I am sure he could come up with a non-chargecooled fuel map set pretty easy.
As there were only, what, 114 or so 89 non-SE's made, we are kinda orphans for chip code.
Dr.Hess
I have the original code in mine. Four euro bills does seem a bit high to me as well, but there is a lot of reverse and foreward engineering to do to get the maps for our ECM. You know how turbo motors are: You can keep cranking the boost until it goes boom, then back it off one notch (on the new motor). I really don't want to do that. Like I said, if Squelch were to develop one for the non-SE I would consider it, as I respect his technical expertise and trust him to come up with maps that won't blow a motor on a non-chargecooled car. Actually, John said that the best thing to do is to buy a new SE type ECM (about a hundred real dollars at O'Reilley's) and re-wire the plugs, then you can run the SE code. I am sure he could come up with a non-chargecooled fuel map set pretty easy.
As there were only, what, 114 or so 89 non-SE's made, we are kinda orphans for chip code.
Dr.Hess
Hi All,
what you all wrote is correct.
Chipping the non c/cooled engine is more complicated than with the c/cooled variants. You may know that the non c/cooled engine has its MAT (mass air temp sensor) not after the turbo it has the sensort in the airbox !!! This location makes it impossible for the sensor to read the correct air temp after the turbo. With the stock setup the ECU is correcting fuel and spark via fixed correction tables (boost vs ambient temp). Thats also the reason why a later chip-code is NOT compatible with the non c/cooled engines and there is a huge risc that you damage your engine because the later code constantly thinks that MAT is pretty low. The tables are also totally different and the way the ECU interprets them is also different. With the non c/cooled cars the only way to get the engine safe is to give more fuel depending only on boost. MAT readings are not so important here. Chip #15 is not a bad one. I personally like it (cost me a lot of hours to do it ;o)
Cheers
Marcus (www.PUKesprit.de)
what you all wrote is correct.
Chipping the non c/cooled engine is more complicated than with the c/cooled variants. You may know that the non c/cooled engine has its MAT (mass air temp sensor) not after the turbo it has the sensort in the airbox !!! This location makes it impossible for the sensor to read the correct air temp after the turbo. With the stock setup the ECU is correcting fuel and spark via fixed correction tables (boost vs ambient temp). Thats also the reason why a later chip-code is NOT compatible with the non c/cooled engines and there is a huge risc that you damage your engine because the later code constantly thinks that MAT is pretty low. The tables are also totally different and the way the ECU interprets them is also different. With the non c/cooled cars the only way to get the engine safe is to give more fuel depending only on boost. MAT readings are not so important here. Chip #15 is not a bad one. I personally like it (cost me a lot of hours to do it ;o)
Cheers
Marcus (www.PUKesprit.de)
Yes, I thought about that too. If the temp sensor was in the right place, much better fuel maps could be used but you could not just swap the chip back to stock a minute. But, if you put two temp sensors in, one in the stock location and one after the turbo, then you could just swap the chip and move the plug wire and go back and forth.
I would consider a chip, even at four euro bills, that used a temp sensor in the correct location. Would not want to be the beta tester, though.
Dr.Hess
I would consider a chip, even at four euro bills, that used a temp sensor in the correct location. Would not want to be the beta tester, though.
Dr.Hess
hey, thanks to all for your input on this matter. I have been driving the car quite a bit as the weather has been tops. I am fine with the car the way it is. I would appreciate an update if anyone hears of a kit... that either relocates the Air temp and a chip... or if a few of you chip your cars and are happy with the results.
thanks
Tim
bahnfire@mac.com
thanks
Tim
bahnfire@mac.com
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